This is just the pulley on the bracket and not the entire assembly.
This pulley is only used on those models that are equipped an auxiliary A/C system (second compressor).
It DOES NOT include the mounting bracket.
Pulley is smooth, 80mm in diameter and 26mm wide.
Detailed Description
Sprinter II 2007-2018 3.0L V6 diesel
Sprinter III 2019+ 3.0L V6
This component is ONLY used on those vehicles equipped with roof air, which have two A/C compressors.
If you have standard A/C, you do have this part on your engine.